Estimación del régimen térmico y producción de calor de los niveles litosféricos del Sistema Central Español

Abstract

Heat production of outcropping metamorphic and granitic rocks from the Spanish Central System (SCS) is similar to other surface heat production estimates in Paleozoic provinces (average A value 2.64 mWm-3). However, heat flow range in the SCS is higher than for Paleozoic terranes (70-90 mWm-2 instead of 45-70 mWm-2). Contribution of mantle to the heat budget is estimated to be 27 mWm-2. Thus, a slightly higher mantle heat flow combined with a lower crust with a markedly high heat production (average A value 1.04 mWm-3) may explain the high estimated surface heat flow.